What is the best tourist visa option for an 89-day stay in Thailand?

“DTAC” visa 🤦‍♂️

It never ends

You are confused. TDAC isn't a visa. All foreigners must fill out the TDAC every time they enter the kingdom.

I think you are referring to entering with the Visa exemption, which is not a visa at all.

The Non O visa can be applied for while outside Thailand via the online portal. It is very simple, check out YouTube for videos on exactly how to do it. Should take ten minutes once you get the information together. You basically just have to tell them who you are, where you are going to stay when you first get to Thailand and show that you have some money.... It's not a big deal.

As for discretion of the immigration officer, that basically applies to every non citizen entering Thailand and every visa or extension application.

The fact that you even refer to a TDAC Visa reflects a lack of understanding and an apparent lack of careful reading. Please don’t expect others to do your basic research

60days visa exempt and 30days extension at immigration office will work for u the best if u don't do it often in a year

No idea where u are from but guessing u dont even need a visa. 60 days on entry then extend for 30

If you applied for a tourist visa and it asked for a ton of stuff, then that means you applied for the multiple entry tourist visa, which you did not need for an 89 day stay. You could have applied for the single entry tourist visa, which barely has any requirements at all. But you don't need any visa, you can get a 60 day visa exempt entry, and apply for a 30-day extension, the exact same as a tourist visa.

TDAC has nothing to do with visas or your stay in Thailand. It's just an entry card required by everyone entering Thailand.